Perhaps you should try some spelling variations:
onlemler istatistikler » onlemleri istatistikler (Expand Search), meslekler istatistikler (Expand Search), ulkeler istatistikler (Expand Search)
onleme istatistikler » ornekleme istatistikler (Expand Search), onlemleri istatistikler (Expand Search), isletme istatistikler (Expand Search)
sanayileri gerekli » sanayileri sureli (Expand Search)
santraller sureli » santralleri sureli (Expand Search), metaller sureli (Expand Search), santrallar suphi (Expand Search)
sanayiler sureli » sanayii sureli (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( nukleer ((santraller sureli) OR (santraller guvenlik)) onleme istatistikler ) OR ( nukleer ((sanayileri gerekli) OR (sanayiler sureli)) onlemler istatistikler ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( nukleer ((santraller sureli) OR (santraller guvenlik)) onleme istatistikler ) OR ( nukleer ((sanayileri gerekli) OR (sanayiler sureli)) onlemler istatistikler ))".
• Adding a wildcard symbol may retrieve word variants: (( nukleer ((santraller sureli) OR (santraller guvenlik)) onleme istatistikler ) OR ( nukleer ((sanayileri gerekli) OR (sanayiler sureli)) onlemler istatistikler ))*.